A method for manufacturing at least one transportation tube having a plurality of transportation tube sections for a high-speed transportation system. The method includes manufacturing the tube sections in-situ adjacent to an approximate path of the transportation system where the tube sections are to be positioned.

The invention relates to an overhead guided-transport track span having a U-shaped cross section, the two arms of which form lateral walls (4, 5) of said track, and the central region of which, connecting the two arms, forms a load-bearing slab (6) of said track, characterised in that said load-bearing slab (6) comprises at least one groove (10, 11) that is provided in said slab longitudinally along said span and is designed to be able to receive a running support (12, 13) of a guided-transport vehicle intended to travel on said track.

A railway geogrid construction is suitable for use with high speed trains to mitigate the increased impact of Rayleigh waves generated at high speed and/or over soft subgrades. The construction includes a track bed which defines a track located on a track plane, a mass of particulate material such as an aggregate forming a layer located beneath the track plane, and a geogrid located in and/or below the particulate mass in a geogrid plane substantially parallel to the track plane where the average distance between the track plane and geogrid plane, measured perpendicular to both, is greater than 0.65 metres.

A railway geogrid construction is suitable for use with high speed trains to mitigate the increased impact of Rayleigh waves generated at high speed and/or over soft subgrades. The construction includes a track bed which defines a track located on a track plane, a mass of particulate material such as an aggregate forming a layer located beneath the track plane, and a geogrid located in and/or below the particulate mass in a geogrid plane substantially parallel to the track plane where the average distance between the track plane and geogrid plane, measured perpendicular to both, is greater than 0.65 metres.

A modular structure, configured to be connectable with a plurality of modular structures to form an enclosed transportation path, each modular structure including a bottom element structured and arranged to provide a track support surface and a plurality of upper element attachment structures, and an upper element configured to attach to the bottom element at the plurality of upper element attachment structures, wherein the upper element is structured to sealingly engage with the lower element.

A rail structure of steel rail track and steel wheel vehicle includes a track and a vehicle, wherein the track comprises: two main steel rails, one or two auxiliary rails, or no auxiliary rails, and a turnout; the main steel rails and the auxiliary rails form a ballastless track or a ballasted track; the vehicle comprises: a vehicle body, a main steel wheel, an auxiliary rail guide wheel, and an auxiliary rail action component; the main steel wheel has or has no wheel flange, the tread is a cylindrical surface, and the left and right main steel wheels are independent rolling wheel pairs, not rigid wheel pairs; the main steel wheel rolls on the main steel rail, supports the weight of the vehicle, and drives and brakes the vehicle.

A bi-directional railroad-track to maglev-guideway transition system includes a portion of a railroad track having two parallel rails defining a first axis of travel, and a portion of a maglev guideway defining a second axis of travel. In the transition system, the portion of the maglev guideway is adjacent to the two parallel rails of the portion of the railroad track with a non-zero elevation grade being defined between the first axis of travel and the second axis of travel.

A bi-directional railroad-track to maglev-guideway transition system includes a portion of a railroad track having two parallel rails defining a first axis of travel, and a portion of a maglev guideway defining a second axis of travel. In the transition system, the portion of the maglev guideway is adjacent to the two parallel rails of the portion of the railroad track with a non-zero elevation grade being defined between the first axis of travel and the second axis of travel.

A precast H block (3) interlock each other to form sloping wall and similarly precast Y block (10) interlock each other to form straight wall, both block having a pin hole (4) through side walls. A wire rope (5) passing through said pin hole to make a wall strengthened by nailing horizontally (14) into the earth (8) adjacent to the block and vertically nailing (9) at top and bottom level. As well as wire rope (5) passing through said pin hole (4) of uppermost blocks, from underneath the road, to make a wall/barrier strengthened by nailing vertically (9) into the earth across the road (2).

There is disclosed a railway geogrid construction suitable for use with high speed trains to mitigate the increased impact of Rayleigh waves generated at high speed and/or over soft subgrades, the construction comprising: a track bed (e.g. having rails for a train) which defines a track located on a track plane; a mass of particulate material (e.g. aggregate) forming a layer located beneath the track plane; and a geogrid located in and/or below the particulate mass in a plane (geogrid plane) substantially parallel to the track plane where the average distance between the track plane and geogrid plane, measured perpendicular to both is greater than 0.65 metres.